Home / 27,127.35-40,683.74-18,415.89

Finding the Fourth Proportional to 27,127.35, 40,683.74 and 18,415.89

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Solution

The fourth proportional to 27,127.35, 40,683.74 and 18,415.89 is: 27,618.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,127.35 : 40,683.74 = 18,415.89 : x
  2. Step 2: Convert to fraction form
    27,127.35/40,683.74 = 18,415.89/x
  3. Step 3: Cross multiply
    27,127.35x = 40,683.74 × 18,415.89
  4. Step 4: Simplify right side
    27,127.35x = 749,227,188.55
  5. Step 5: Solve for x
    x = 749,227,188.55/27,127.35
  6. Step 6: Final answer
    x = 27,618.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.